Radiation — Quiz Answers

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1
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Car manufacturers use radiation for which task?

A
lubricating engines
B
sealing windows
C
cleaning tires
D
drying paint
2
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Which best illustrates the way in which radiation transfers thermal energy?

A
Image with description A red ball at left labeled warm touches a blue ball labeled cool at right. Straight arrows point from the red ball to the blue ball.
B
Image with description A red ball at left labeled warm touches a blue ball labeled cool at right. Straight arrows point from the blue ball to the red ball.
C
Image with description A red ball at left labeled warm does not touch a blue ball labeled cool at right. Curved arrows point from the red ball to the blue ball.
D
Image with description A red ball at left labeled warm does not touch a blue ball labeled cool at right. Curved arrows point from the blue ball to the red ball.
3

A farmer places unhatched chicken eggs under a heat lamp. How does the radiation help the eggs?

A
It keeps the area around the eggs cool until the eggs hatch.
B
It makes the eggs weaker so they are easier to break open.
C
It keeps the eggs warm until they hatch.
D
It makes the eggs stronger so they do not break.
6

How does radiation help treat cancer?

A
It heats up the cancer cells and weakens them.
B
It cools down the non-cancerous cells and strengthens them.
C
It cools down the cancer cells and weakens them.
D
It heats up the non-cancerous cells and strengthens them.
7

Which refers to a diagram that shows thermal energy being released by objects?

A
thermogram
B
heat sensor
C
radiation image
D
thermal radiator
9

Which best explains how radiation is helpful in the plastics industry?

A
It improves the strength and durability of plastic.
B
It adds a protective layer to plastic.
C
It makes plastics easier to shape.
D
It decreases the melting point of plastic.
10

Which material would result in the greatest amount of energy transfer?

A
A reflector that is dark in color and smooth.
B
An absorber that is light in color and rough.
C
A reflector that is light in color and smooth.
D
An absorber that is dark in color and rough.

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Radiation — Quiz Answers — Physical Science